What is the term for elements in Group 18 of the periodic table?
Answer and explanation
Correct answer: C. Noble gases
- Step 1: Group 18 elements have complete outer electron valence shells ( or for Helium).
- Step 2: This stable octet confers minimal chemical reactivity, classifying them as noble (inert) gases.
Answer
Noble gases.
Why not the others: 'Halogens' belong to Group 17; 'Alkali metals' belong to Group 1; 'Alkaline earth metals' belong to Group 2.
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